EP2640139A1 - Mobiles kommunikationsverfahren und drahtlose basisstation - Google Patents
Mobiles kommunikationsverfahren und drahtlose basisstation Download PDFInfo
- Publication number
- EP2640139A1 EP2640139A1 EP11839982.3A EP11839982A EP2640139A1 EP 2640139 A1 EP2640139 A1 EP 2640139A1 EP 11839982 A EP11839982 A EP 11839982A EP 2640139 A1 EP2640139 A1 EP 2640139A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- base station
- radio base
- cell
- indication information
- interference indication
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000010295 mobile communication Methods 0.000 title claims abstract description 29
- 238000000034 method Methods 0.000 title claims abstract description 11
- 238000005259 measurement Methods 0.000 claims abstract description 33
- 238000004891 communication Methods 0.000 claims abstract description 10
- 230000004044 response Effects 0.000 claims description 8
- 230000005540 biological transmission Effects 0.000 claims description 6
- 238000010586 diagram Methods 0.000 description 8
- 230000000694 effects Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- NRNCYVBFPDDJNE-UHFFFAOYSA-N pemoline Chemical compound O1C(N)=NC(=O)C1C1=CC=CC=C1 NRNCYVBFPDDJNE-UHFFFAOYSA-N 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W24/00—Supervisory, monitoring or testing arrangements
- H04W24/10—Scheduling measurement reports ; Arrangements for measurement reports
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/50—Allocation or scheduling criteria for wireless resources
- H04W72/54—Allocation or scheduling criteria for wireless resources based on quality criteria
- H04W72/541—Allocation or scheduling criteria for wireless resources based on quality criteria using the level of interference
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W92/00—Interfaces specially adapted for wireless communication networks
- H04W92/16—Interfaces between hierarchically similar devices
- H04W92/20—Interfaces between hierarchically similar devices between access points
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/16—Performing reselection for specific purposes
- H04W36/20—Performing reselection for specific purposes for optimising the interference level
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/20—Control channels or signalling for resource management
- H04W72/27—Control channels or signalling for resource management between access points
Definitions
- the present invention relates to a mobile communication method and a radio base station.
- an object of the present invention is to provide a mobile communication method and a radio base station with which it is possible to start "eICIC" at an appropriate timing.
- a first characteristic of the present invention is summarized in including: a step A of transmitting, by a mobile station, a measurement report including measurement results of radio qualities of neighboring cells in a downlink to a first radio base station that manages a first cell in which the mobile station is in communication; a step B of selecting, by the first radio base station, a second cell from among the neighboring cells on the basis of the measurement report; and a step C of transmitting, by the first radio base station, interference indication information indicating an influence of interference on the mobile station in a downlink direction being strong to a second radio base station that manages the second cell.
- a second characteristic of the present invention is summarized as a radio base station that manages a cell in which a mobile station is in communication, including: a measurement report receiving unit that receives a measurement report including measurement results of radio qualities of neighboring cells in a downlink from the mobile station; a selection unit that selects a specific cell from among the neighboring cells on the basis of the measurement report; and an interference indication information transmission unit that transmits interference indication information indicating an influence of interference on the mobile station in a downlink direction being strong to a specific radio base station that manages the specific cell.
- a mobile communication system is described with reference to Fig. 1 through Fig. 8 .
- an LTE mobile communication system will be described as an example of the mobile communication system according to the present embodiment.
- the present invention is also applicable to mobile communication systems other than the LTE mobile communication system.
- the mobile communication system according to the present embodiment is configured to perform "eICIC” using a "Time domain scheme”.
- the mobile communication system includes a radio base station eNB#1 configured to manage a cell #1, a radio base station eNB#2 configured to manage a cell #2, a radio base station eNB#3 configured to manage a cell #3, and a radio base station eNB#4 configured to manage a cell #4.
- the cells #1 to #4 may be micro cells, or may be CSG (Closed Subscriber Group) cells.
- the CSG cell may be called a Femto cell, a Micro cell, a Pico cell, or the like.
- a mobile station UE is assumed to be in a connected state in the cell #1, that is, to be in communication in the cell #1.
- the radio base station eNB#1 includes a radio interface 11, a selection unit 12, an X2 interface 13, and a scheduling unit 14.
- the radio interface 11 is configured to perform radio communication with the mobile station UE through an RRC (Radio Resource Control) connection.
- RRC Radio Resource Control
- the radio interface 11 is configured to receive "Measurement Report" including measurement results of radio qualities of neighboring cells #2 to #4 in a downlink from the mobile station UE.
- the selection unit 12 is configured to select a specific cell (for example, the cell #2) from among the neighboring cells #2 to #4 on the basis of the "Measurement Report", that is, on the basis of the measurement results included in the "Measurement Report".
- the selection unit 12 may be configured to select a cell of which the radio quality in the downlink is the worst or a cell of which the radio quality in the downlink is worse than a predetermined radio quality from among the neighboring cells #2 to #4, as the specific cell.
- the X2 interface 13 is configured to serve as an interface with the neighboring cells #2 to #4.
- the X2 interface 13 is configured to transmit "DL HI (High Interference) Indication" to a specific radio base station eNB (for example, the radio base station eNb#2) that manages the specific cell.
- a specific radio base station eNB for example, the radio base station eNb#2
- the "DL HI Indication" is information indicating an influence of interference on the mobile station UE in a downlink direction being strong.
- the X2 interface 13 may be configured to transmit the "DL HI Indication" by using "X2 Load Information”.
- the X2 interface 13 may be configured to transmit "DL HI Indication" within "Cell Information” as an information element within the "X2 Load Information”.
- the X2 interface 13 may be configured to transmit the "DL HI Indication" by using "eNB Configuration Update".
- the X2 interface 13 may be configured to transmit "DL HI Indication" within "Served Cell Information” as an information element within the "eNB Configuration Update".
- the X2 interface 13 may be configured to transmit the "DL HI Indication" by using "X2 Setup Request".
- the X2 interface 13 may be configured to transmit "DL HI Indication" within "Served Cell Information” as an information element within the "X2 Setup Request".
- the X2 interface 13 may be configured to transmit the "DL HI Indication" by using "X2 Setup Response".
- the X2 interface 13 may be configured to transmit "DL HI Indication" within "Served Cell Information” as an information element within the "X2 Setup Response".
- the scheduling unit 14 is configured to perform scheduling on the mobile station UE in the downlink on the basis of a subframe pattern received by the X2 interface 13 from the radio base station eNb#2.
- the subframe pattern indicates a subframe that does not transmit downlink data, for example, an ABS (Almost Blank Subframe) or an MBSFN (Multicast Broadcast Single Frequency Network) subframe.
- ABS Almost Blank Subframe
- MBSFN Multicast Broadcast Single Frequency Network
- the scheduling unit 14 may be configured to perform scheduling on the mobile station UE in the downlink in the ABS or the MBSFN subframe designated by the subframe pattern.
- step S1001 the mobile station UE transmits the "Measurement Report" including the measurement results of the radio qualities of the neighboring cells #2 to #4 in the downlink to the radio base station eNB#1 that manages the cell #1 in which the mobile station UE is in communication.
- step S1002 the radio base station eNB#1 selects the cell #2 as the specific cell from among the neighboring cells #2 to #4 on the basis of the measurement results included in the "Measurement Report".
- step S1003 the radio base station eNB#1 transmits the "DL HI Indication" to the radio base station eNB#2 that manages the cell #2.
- step S1004 the radio base station eNB#2 starts the "eICIC” using the "Time domain scheme” in response to the "DL HI Indication", and sets the ABS or the MBSFN subframe, that is a subframe which does not transmit the downlink data.
- the radio base station eNB#2 may not set the ABS or the MBSFN subframe, that is a subframe which does transmit the downlink data.
- step S1005 the radio base station eNB#2 transmits the subframe pattern indicating the subframe which does not transmit the set downlink data to the radio base station eNB#1.
- step S1006 the radio base station eNB#1 performs scheduling on the mobile station UE in the downlink on the basis of the subframe pattern.
- the radio base station eNB#1 when the "DL HI Indication" indicating the influence of the interference on the mobile station UE in the downlink being strong is received from the radio base station eNB#1, since the radio base station eNB#2 is configured to start the “eICIC” using the “Time domain scheme", it is possible to appropriately start the "eICIC”.
- a first characteristic of the present embodiment is summarized in that the mobile communication method including: a step A of transmitting, by a mobile station UE, "Measurement Report" including the measurement results of the radio qualities of neighboring cells #2 to #4 in a downlink to a radio base station eNB#1 (a first radio base station) that manages a cell #1 (a first cell) in which the mobile station UE is in communication; a step B of selecting, by the radio base station eNB#1, the cell #2 (a second cell) from among the neighboring cells #2 to #4 on the basis of the "Measurement Report”; and a step C of transmitting, by the radio base station eNB#1, "DL HI indication (interference indication information)" indicating the influence of the interference on the mobile station UE in a downlink direction being strong to a radio base station eNB#2 (a second radio base station) that manages the cell #2.
- DL HI indication interference indication information
- the mobile communication method may further include a step of transmitting, by the radio base station eNB#2, a subframe pattern (subframe information) indicating the subframe (ABS/MBSFN subframe) that does not transmit downlink data in response to the "DL HI Indication" to the radio base station eNB#1.
- the radio base station eNB#1 may transmit the "DL HI Indication" by using "X2 Load Information".
- the radio base station eNB#1 may transmit the "DL HI Indication" by using "eNB Configuration Update (updating information of a configuration of the radio base station).
- the radio base station eNB#1 may transmit the "DL HI Indication" by using "X2 Setup Request/X2 Setup Response" as information on setting of an X2 connection between the radio base station eNB#1 and the radio base station eNB#2.
- a radio base station eNB managing a cell #1 in which a mobile station UE is in communication includes: a radio interface 11 (a measurement report reception unit) that receives "Measurement Report" including the measurement results of the radio qualities of neighboring cells #2 to #4 in a downlink from the mobile station UE; a selection unit 12 that selects the cell #2 (the specific cell) from among the neighboring cells #2 to #4 on the basis of the "Measurement Report"; and an X2 interface 13 (interference indication information transmission unit) that transmits "DL HI Indication" to a radio base station eNB#2 (the specific radio base station) that manages the cell #2.
- a radio interface 11 a measurement report reception unit
- receives "Measurement Report" including the measurement results of the radio qualities of neighboring cells #2 to #4 in a downlink from the mobile station UE
- a selection unit 12 that selects the cell #2 (the specific cell) from among the neighboring cells #2 to #4 on the basis of the "Measurement
- the radio base station eNB may further include a scheduling unit 14 that performs scheduling on the mobile station UE in the downlink on the basis of the subframe pattern when the subframe pattern indicating the subframe (ABS/MBSFN subframe) that does not transmit downlink data is received from the radio base station eNB#2.
- the X2 interface 13 may be configured to transmit the "DL HI Indication" by using "X2 Load Information".
- the X2 interface 13 may be configured to transmit the "DL HI Indication" by using "eNB Configuration Update".
- the X2 interface 13 may be configured to transmit the "DL HI Indication" by using "X2 Setup Request/X2 Setup Response”.
- the operation of the radio base station eNB, or the mobile station UE may be performed by hardware, a software module performed by a processor, or a combination thereof.
- the software module may be arranged in a storage medium of an arbitrary format such as a RAM (Random Access Memory), a flash memory, a ROM (Read Only Memory), an EPROM (Erasable Programmable ROM), an EEPROM (Electronically Erasable and Programmable ROM), a register, a hard disk, a removable disk, or a CD-ROM.
- a RAM Random Access Memory
- flash memory a ROM (Read Only Memory)
- EPROM Erasable Programmable ROM
- EEPROM Electrically Erasable and Programmable ROM
- the storage medium is connected to the processor so that the processor can write and read information into and from the storage medium.
- a storage medium may also be accumulated in the processor.
- Such a storage medium and processor may be arranged in an ASIC.
- the ASIC may be arranged in the radio base station eNB, or the mobile station UE.
- such a storage medium and processor may be arranged in the radio base station eNB, or the mobile station UE as discrete components.
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Quality & Reliability (AREA)
- Mobile Radio Communication Systems (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2010253712A JP4960489B2 (ja) | 2010-11-12 | 2010-11-12 | 移動通信方法及び無線基地局 |
PCT/JP2011/076033 WO2012063932A1 (ja) | 2010-11-12 | 2011-11-11 | 移動通信方法及び無線基地局 |
Publications (3)
Publication Number | Publication Date |
---|---|
EP2640139A1 true EP2640139A1 (de) | 2013-09-18 |
EP2640139A4 EP2640139A4 (de) | 2014-05-21 |
EP2640139B1 EP2640139B1 (de) | 2015-08-19 |
Family
ID=46051069
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP11839982.3A Active EP2640139B1 (de) | 2010-11-12 | 2011-11-11 | Mobiles kommunikationsverfahren und drahtlose basisstation |
Country Status (10)
Country | Link |
---|---|
US (1) | US9119104B2 (de) |
EP (1) | EP2640139B1 (de) |
JP (1) | JP4960489B2 (de) |
KR (1) | KR20130073988A (de) |
CN (1) | CN103222322B (de) |
AU (1) | AU2011327112A1 (de) |
BR (1) | BR112013011746A2 (de) |
CA (1) | CA2817517A1 (de) |
MX (1) | MX2013005322A (de) |
WO (1) | WO2012063932A1 (de) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP3007493A4 (de) * | 2013-07-31 | 2016-06-22 | Huawei Tech Co Ltd | Verfahren und vorrichtung zum senden und empfangen von datenrahmen |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2645605B1 (de) * | 2010-11-22 | 2021-08-11 | LG Electronics Inc. | Verfahren und vorrichtung zur messung eines abwärtskanals in einem drahtlosen kommunikationssystem |
EP2880939A1 (de) * | 2012-07-30 | 2015-06-10 | Telefonaktiebolaget LM Ericsson (PUBL) | Knoten und verfahren darin zur verwaltung von zeitfrequenzressourcen |
US9635566B2 (en) | 2014-04-25 | 2017-04-25 | At&T Intellectual Property I, L.P. | Enhancement of access points to support heterogeneous networks |
US9516564B2 (en) | 2014-04-25 | 2016-12-06 | At&T Intellectual Property I, L.P. | Enhancement of a cell reselection parameter in heterogeneous networks |
US9621294B2 (en) | 2014-10-02 | 2017-04-11 | At&T Intellectual Property I, L.P. | Enhancement of inter-cell interference coordination with adaptive reduced-power almost blank subframes based on neighbor cell profile data |
WO2018201502A1 (zh) * | 2017-05-05 | 2018-11-08 | 华为技术有限公司 | 一种信号处理方法及装置 |
JP7105132B2 (ja) * | 2018-08-06 | 2022-07-22 | Kddi株式会社 | レガシーシステムとの共存を実行するための通信装置、通信方法、及びプログラム |
Citations (1)
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US20100267408A1 (en) * | 2009-04-20 | 2010-10-21 | Samsung Electronics Co., Ltd. | Inter-cell interference coordination method and apparatus for wireless communication system |
Family Cites Families (12)
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CN101420734A (zh) * | 2008-11-28 | 2009-04-29 | 华为技术有限公司 | 下行干扰协调方法和基站 |
US20130153298A1 (en) * | 2009-02-19 | 2013-06-20 | Interdigital Patent Holdings, Inc. | Method and apparatus for enhancing cell-edge user performance and signaling radio link failure conditions via downlink cooperative component carriers |
KR101644435B1 (ko) * | 2009-05-26 | 2016-08-01 | 엘지전자 주식회사 | 광대역 무선 접속 시스템에서 펨토 기지국의 이웃 기지국 리스트 관리 방법 |
US8305987B2 (en) * | 2010-02-12 | 2012-11-06 | Research In Motion Limited | Reference signal for a coordinated multi-point network implementation |
JP2011221823A (ja) * | 2010-04-09 | 2011-11-04 | Funai Electric Co Ltd | 電子機器装置 |
US20110249642A1 (en) * | 2010-04-13 | 2011-10-13 | Qualcomm Incorporated | Adaptive resource negotiation between base stations for enhanced interference coordination |
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WO2012061224A1 (en) * | 2010-11-05 | 2012-05-10 | Interdigital Patent Holdings, Inc. | Methods, apparatus and systems for applying almost blank subframe (abs) patterns |
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-
2010
- 2010-11-12 JP JP2010253712A patent/JP4960489B2/ja active Active
-
2011
- 2011-11-11 KR KR1020137012712A patent/KR20130073988A/ko active Search and Examination
- 2011-11-11 AU AU2011327112A patent/AU2011327112A1/en not_active Abandoned
- 2011-11-11 BR BR112013011746A patent/BR112013011746A2/pt not_active IP Right Cessation
- 2011-11-11 CN CN201180054291.7A patent/CN103222322B/zh active Active
- 2011-11-11 MX MX2013005322A patent/MX2013005322A/es active IP Right Grant
- 2011-11-11 EP EP11839982.3A patent/EP2640139B1/de active Active
- 2011-11-11 CA CA2817517A patent/CA2817517A1/en not_active Abandoned
- 2011-11-11 WO PCT/JP2011/076033 patent/WO2012063932A1/ja active Application Filing
- 2011-11-11 US US13/884,525 patent/US9119104B2/en active Active
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US20100267408A1 (en) * | 2009-04-20 | 2010-10-21 | Samsung Electronics Co., Ltd. | Inter-cell interference coordination method and apparatus for wireless communication system |
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CMCC(RAPPORTEUR): "Summary of the description of candidate eICIC solutions", 3GPP DRAFT; R1-105081 SUMMARY OF THE DESCRIPTION OF CANDIDATE EICIC SOLUTIONS_V5, 3RD GENERATION PARTNERSHIP PROJECT (3GPP), MOBILE COMPETENCE CENTRE ; 650, ROUTE DES LUCIOLES ; F-06921 SOPHIA-ANTIPOLIS CEDEX ; FRANCE, no. Madrid, Spain; 20100823 - 20100827, 27 August 2010 (2010-08-27), XP050598703, [retrieved on 2010-08-27] * |
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See also references of WO2012063932A1 * |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP3007493A4 (de) * | 2013-07-31 | 2016-06-22 | Huawei Tech Co Ltd | Verfahren und vorrichtung zum senden und empfangen von datenrahmen |
US9807698B2 (en) | 2013-07-31 | 2017-10-31 | Huawei Technologies Co., Ltd. | Data frame sending method and apparatus, and data frame receiving method and apparatus |
Also Published As
Publication number | Publication date |
---|---|
CN103222322A (zh) | 2013-07-24 |
JP2012105176A (ja) | 2012-05-31 |
KR20130073988A (ko) | 2013-07-03 |
EP2640139B1 (de) | 2015-08-19 |
AU2011327112A1 (en) | 2013-06-13 |
CN103222322B (zh) | 2014-08-13 |
BR112013011746A2 (pt) | 2016-08-09 |
US9119104B2 (en) | 2015-08-25 |
MX2013005322A (es) | 2013-06-13 |
CA2817517A1 (en) | 2012-05-18 |
US20130301528A1 (en) | 2013-11-14 |
EP2640139A4 (de) | 2014-05-21 |
JP4960489B2 (ja) | 2012-06-27 |
WO2012063932A1 (ja) | 2012-05-18 |
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